Mothers are generally reluctant to come. When a mother turns up, she is often a single mother who wants to get evidence to find out the biological father of the child so she can demand compensation.

We are always busiest during the run-up to Spring Festival. It is the peak time for paternity tests.

If they insist, we will keep their profile confidential.

They (the migrant workers) are separated from their spouses for a large part of the year. They don't earn much, but they choose to spend a lot on the test. It is such a pity.

Listen kid, it’s just you and me now, so let’s help each other out. Always be honest with me, and show me how to be the mother and father I never had. I’ll make a mess of things sometimes, and I’m sorry in advance, but I’ll try. My word is bond.

It's tricky because you have to treat the mother and the baby. The mothers are in turmoil, so we try to reassure them that they will do well and get them to concentrate on delivering the baby.